<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="类型" prop="type">
        <el-select v-model="queryParams.type" placeholder="请选择类型" clearable>
          <el-option
            v-for="dict in dict.type.banner_type"
            :key="dict.value"
            :label="dict.label"
            :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['system:banner:add']"
        >新增
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['system:banner:edit']"
        >修改
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['system:banner:remove']"
        >删除
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['system:banner:export']"
        >导出
        </el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="bannerList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center"/>
      <el-table-column label="" align="center" prop="id" v-if="true"/>
      <el-table-column label="描述信息" align="center" prop="info"/>
      <el-table-column label="轮播图片" align="center" prop="pic" width="100">
        <template slot-scope="scope">
          <image-preview :src="scope.row.url" :width="50" :height="50"/>
        </template>
      </el-table-column>
      <el-table-column label="类型" align="center" prop="type">
        <template slot-scope="scope">
          <dict-tag :options="dict.type.banner_type" :value="scope.row.type"/>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['system:banner:edit']"
          >修改
          </el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['system:banner:remove']"
          >删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改轮播图对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="描述信息" prop="info">
          <el-input v-model="form.info" placeholder="请输入描述信息"/>
        </el-form-item>
        <el-form-item label="轮播图片">
          <image-upload :limit="2" v-model="form.pic"/>
        </el-form-item>
        <el-form-item v-if="form.type == '0' " label="跳转">
          <el-input v-model="form.parameter" disabled placeholder="请选择商品" style="width: 220px" ></el-input>
          <el-button @click="click" type="success" style="margin-left: 10px" >选择商品</el-button>
        </el-form-item>
        <el-form-item label="类型" prop="type">
          <el-select v-model="form.type" placeholder="请选择类型">
            <el-option
              v-for="dict in dict.type.banner_type"
              :key="dict.value"
              :label="dict.label"
              :value="dict.value"
            ></el-option>
          </el-select>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button :loading="buttonLoading" type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>

    <!--  选择跳转商品  -->
    <el-dialog title="选择商品" :visible.sync="visible" width="1200px" append-to-body >
      <el-form :model="queryProductParams" ref="queryProductForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
        <el-form-item label="商品名称" prop="storeName">
          <el-input
            v-model="queryProductParams.storeName"
            placeholder="请输入商品名称"
            clearable
            @keyup.enter.native="handleQuery"
          />
        </el-form-item>

        <el-form-item label="商品分类" prop="storeName">
          <el-input
            v-model="queryProductParams.storeName"
            placeholder="请输入商品分类"
            clearable
            @keyup.enter.native="handleQuery"
          />
        </el-form-item>

        <el-form-item>
          <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
          <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
        </el-form-item>
      </el-form>

      <el-table v-loading="loading" :data="storeProductList" @selection-change="handChange">
        <el-table-column type="selection" width="55" align="center"/>
        <el-table-column label="商品id" align="center" prop="id" v-if="true"/>
        <el-table-column label="商品图片" align="center" prop="fileName" width="100">
          <template slot-scope="scope">
            <image-preview :src="scope.row.fileName" :width="50" :height="50"/>
          </template>
        </el-table-column>
        <el-table-column label="商品名称" align="center" prop="storeName"/>
        <el-table-column label="创建时间" align="center" prop="createTime">
          <template slot-scope="scope">
            <span>{{ parseTime(scope.row.createTime) }}</span>
          </template>
        </el-table-column>
      </el-table>

      <pagination
        v-show="productTotal>0"
        :total="productTotal"
        :page.sync="queryProductParams.pageNum"
        :limit.sync="queryProductParams.pageSize"
        @pagination="getProductList"
      />

      <div slot="footer" class="dialog-footer">
        <el-button :loading="buttonLoading" type="primary" @click="sure">确 定</el-button>
      </div>
    </el-dialog>

  </div>
</template>

<script>
import {listBanner, getBanner, delBanner, addBanner, updateBanner} from "@/api/system/banner";
import {listStoreProduct} from "@/api/system/storeProduct";

export default {
  name: "Banner",
  dicts: ['banner_type'],
  data() {
    return {
      // 按钮loading
      buttonLoading: false,
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 轮播图表格数据
      bannerList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        info: undefined,
        pic: undefined,
        type: undefined,
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        id: [
          {required: true, message: "不能为空", trigger: "blur"}
        ],
        info: [
          {required: true, message: "描述信息不能为空", trigger: "blur"}
        ],
        pic: [
          {required: true, message: "轮播图片不能为空", trigger: "blur"}
        ],
        type: [
          {required: true, message: "类型 0 主页 1 轮播图 2 公益宣传图 3 问题板块宣传图片不能为空", trigger: "change"}
        ],
      },
      // 商品查询参数
      queryProductParams: {
        pageNum: 1,
        pageSize: 10,
      },
      // 商品列表
      storeProductList: [],
      // 商品总条数
      productTotal: 0,
      visible: false
    };
  },
  created() {
    this.getList();
  },
  methods: {
    /** 查询轮播图列表 */
    getList() {
      this.loading = true;
      listBanner(this.queryParams).then(response => {
        this.bannerList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        id: undefined,
        info: undefined,
        pic: undefined,
        type: undefined,
        createBy: undefined,
        createTime: undefined,
        updateBy: undefined,
        updateTime: undefined,
        delFlag: undefined
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.id)
      this.single = selection.length !== 1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加轮播图";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.loading = true;
      this.reset();
      const id = row.id || this.ids
      getBanner(id).then(response => {
        this.loading = false;
        this.form = response.data;
        this.open = true;
        this.title = "修改轮播图";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          this.buttonLoading = true;
          if (this.form.id != null) {
            updateBanner(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            }).finally(() => {
              this.buttonLoading = false;
            });
          } else {
            addBanner(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            }).finally(() => {
              this.buttonLoading = false;
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids;
      this.$modal.confirm('是否确认删除轮播图编号为"' + ids + '"的数据项？').then(() => {
        this.loading = true;
        return delBanner(ids);
      }).then(() => {
        this.loading = false;
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).finally(() => {
        this.loading = false;
      });
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('system/banner/export', {
        ...this.queryParams
      }, `banner_${new Date().getTime()}.xlsx`)
    },

    /**
     * 选择跳转商品
     */
    click() {
      this.getProductList()
      this.visible = true
    },

    /** 查询轮播图列表 */
    getProductList() {
      this.loading = true;
      listStoreProduct(this.queryProductParams).then(response => {
        this.storeProductList = response.rows;
        this.productTotal = response.total;
        this.loading = false;
      });
    },

    handChange(selection) {
      if (selection.length > 2) {
        this.$message.warning("选择商品数不能超过轮播图片数！")
      }
      this.form.parameter = selection.map(item => item.id).toString()
      console.log(this.form.parameter)
    },

    sure() {
      if (this.form.parameter.split(",").length > 2) {
        this.$message.warning("选择商品数不能超过轮播图片数！")
      }

      this.visible = false
    },



  }
};
</script>
